I came back from a trip to Korea a few days ago (Like I always do once a year) and the LEGO there ALWAYS come with free stuff in them. So I'm wondering if only Korea get these free goodies (I don't get them in the US), and if you have ever gotten any free stuff too.
By the way, the contents are usually cheap sorting boxes while the bigger sets have more expensive ones. They used to have impulse sets last year but I guess that was too expensive.
EDIT: Some pics:
Large
Medium
Small (Yes it comes with a cap but I was to lazy to find it.)
All stacked
You can see they have dividers in them.
.....And the cheap ones. They used to come in sizes as well, but they started replacing them with the plastic ones sooo....
Overall, they're pretty much like the PAB cups except square.